Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d0bb033dc11483e…

MALICIOUS

PDF

43.6 KB Created: 2021-05-10 13:42:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6e38fbad575a3cb27e681881cb459f24 SHA-1: e80af401757f699453920f668bea600d4ea76da6 SHA-256: 6d0bb033dc11483ebdfd489b0ab1d9234b7952c34fe395048e9da432aaa0482b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple embedded URLs and a high-confidence ML classifier indicates maliciousness. The URLs point to sites offering free in-game currency or items, a common lure for phishing or malware distribution. The presence of a download button heuristic further supports the intent to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/free-roblox-followers-generator-2021-game-hack PDF link annotation
    • http://183.91.70.11/repository/minecraft-java-edition-free_GM479516143.pdfPDF link annotation
    • http://183.91.70.11/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/www-robux-redeem_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004796.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4796 27456 bytes
SHA-256: 8e11cb8a881246d79b4e68f89c5916dfb1be9921781af22b74e539663b392309
font_01_sfnt_off00008652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8652 18844 bytes
SHA-256: 227474e1735e5d7697922269f160fae01492720ac9d8b6c0a7f07948ae0c6b44

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